HYDRO21829

• Permit No: C1980005
• IBM Index Class Name: Hydrology
• Doc Date: 10/23/1998
• Doc Name: 3rd Qtr 1998 Inspections
• From: SENECA COAL CO
• To: DMG
• Permit Index Doc Type: SEDIMENT POND INSPECTIONS
• Media Type: D
• Archive: No

PERIODIC INSPECTION FORM
Stoekpoads or Sumps
INSPECTOR'S NAME: Rw Raro
FACILITY CONFIGURATION: Stoc pond
SITE NAME: T-12
MINE NAME: c n a r•
MINE I.D. NO.: C-80-005
DATE: 09/28/98
DATE LAST INSPECTION: p5./~/98
LOCATION: NW~c-~ ~ TSN R87W
LOCATION: 7.1 mi SE of Hayden, CO
OWNER'S REP.: Brad Rrown_ Gen MqL
1. Anqle of elope: 3:1 upstream, 3:1 downstream Total = f,:t N/A
2. *Seepage (specify location, color, and approximate volume)
At isolated points on embankment elopes: Yes ©° N/A

At natural hillside: Yee NO N/A
Over widespread areas: Yes No N/A
From downstream foundation area: Yes No N/A
"Boils" beneath stream or ponded water: Yee No N/A
3. Cracks or scarps on crest: Yes No N/A
4. Cracks or scarps on elope: Yee o N/A
5. Sloughing or bulging on elope: Yea No N/A
6. *Major erosion problems: Yee o N/A
7. Surface movements in valley bottom or on hillside: Yes No N/A
8. *Eroeion of toe: Yes N N/A
9. *Water impounded against downstream toe: Yes //~~
Rvo/ N/A
10. Existing embankment freeboard: anproximate]„y ~ feet
11. Increase _~ Decrease in water level: -1_ fe
et
12. Cracks, bulging, or erosion on upstream face: Yes ~~~ N/A
13. Spillway erosion: Yes ~
o N/A
14. *Clogging
Spillway channels: Yee N/A
Diversion ditches: Yee ~
o N/A
*Major adveree changes in these items could cause instability and should be reported to
the Engineering Manager and Mine Superintendent for further evaluation. Adverse
conditions noted in these items should normally be described (extent, location, volume,
etc.) in the apace on the back of this sheet.